The Federal Court of Justice (FCJ) held that where a defendant in a patent infringement action has been found to be liable for infringement in a decision that is preliminarily enforceable but subject to appeal, it is generally necessary to suspend enforcement of this decision under Secs. 719 (2) and 707 Code of Civil Procedure against security if the patent in suit has been held invalid by the Federal Patent Court (first instance) in a nullity action. This also applies in further appeal proceedings before the FCJ (second instance).